option(
    'enable_changeword',
    type: 'boolean',
    value: false,
    description: 'experimental feature which allows for changing the syntax of what is a "word" in m4',
)
option(
    'with_syscmd_shell',
    type: 'string',
    value: 'default',
    description: '''By default, the 'syscmd' and 'esyscmd' macros try to use the first of 'bash', 'sh', or 'cmd' found by find_program().  If that default is inappropriate, you can set this option.''',
)
option(
    'enable_tests',
    type: 'boolean',
    value: true,
    description: 'Enable m4 tests',
)
